Taylor Swift made "I Knew You Were Trouble." available on January 1, 2012. With this song being around four minutes long, at 3:42, the duration of this song is pretty average compared to other songs. This track is safe for children and doesn't appear to contain any foul language, since the "Explicit" tag was not present in this track. Because this song is the only song in I Knew You Were Trouble. and no other songs are present in the album, we classify this track as a single. On top of that, United States appears to be the country where this track was created. Based on our statistics, I Knew You Were Trouble.'s popularity is unknown right now. The overall tone is very danceable, especially with its high energy, which produces more of a euphoric, cheerful, or happy vibe.

I Knew You Were Trouble. テンポ

We consider the tempo marking of I Knew You Were Trouble. by Taylor Swift to be Allegro (fast, quick, and bright) because the track has a tempo of 154 テンポ, a half-time of 77テンポ, and a double-time of 308 テンポ. Based on that, the speed of the song's tempo is fast. Activities such as, running, can go well with this song. The time signature for this track is 4/4.

I Knew You Were Trouble. キー

This song has a musical key of F♯ Major. This also means that this song has a camelot key of 2B. So, the perfect camelot match for 2B would be either 2B or 3A. While, 3B can give you a low energy boost. For moderate energy boost, you would use 11B and a high energy boost can either be 4B or 9B. Though, if you want a low energy drop, you should looking for songs with either a camelot key of 2A or 1B will give you a low energy drop, 5B would be a moderate one, and 12B or 7B would be a high energy drop. Lastly, 11A allows you to change the mood.